Water washing system for treating waste incineration fly ash in cooperation with waste incineration flue gas

The utility model relates to a water washing system for treating waste incineration fly ash by cooperating with waste incineration flue gas, which comprises a water replenishing weighing tank, a water outlet of the water replenishing weighing tank is communicated with a water inlet of a pre-stirring slurrying tank, and an ash outlet of a fly ash weighing tank is connected with an ash inlet of the pre-stirring slurrying tank. A liquid outlet of the pre-stirring pulping tank is communicated with a liquid inlet of the first-stage washing tank, a liquid outlet of the first-stage washing tank is communicated with a liquid inlet of the first-stage centrifugal dehydrator, an ash outlet of the first-stage centrifugal dehydrator is communicated with an ash inlet of the second-stage washing tank, a washing liquid outlet of the second-stage washing tank is communicated with a liquid inlet of the second-stage centrifugal dehydrator, and a washing liquid outlet of the second-stage washing tank is communicated with a liqui